Apparatus for coating bearings or the like



Nov. 12, l929. c. w. EGGENWE ILER ErAI. 1,735,534 APPARATUS FOR COATING BEARINGS OR THE LIKE Filed April 26. 192'6 5 sheets-sheet 1 ATTORNEYnS z, 1929- c. w. EGGENWEILER El AL 1,735,534

APPARATUS FOR COATING BEARINGS OR THE LIKE Filed April 26. 1926 5 Sheets-Sheet 2 JR v msw I l I I I N VEN TORS CZMrZes 7/ ezwezo A TTORN E Y5 N 12, 929. c. w. EGGENWEILER ET AL 1,735,534

APPARATUS FOR COATING BEARINGS OR THE LIKE 5 Sheets-Sheet Filed April 26. 1,926

1 N V EN T0R4 7V1 alrwazier A TTORNEYS No v. I2, 1929. c. w. EGGENWEILER ETA L 5, 3 APPARATUS FOR COATING BEARINGS OR THE LIKE y Filed April-26. 1926 5 Sheets-Sheet 4 V/IIIIIIII. 'II/ INVENTOR ATTORNEYS IIIIIIIIII/fi 1929- c. w. EGGENW EILER EIAL APPARATUS FOR COATING BEARINGS OR THE LIKE Filed :April 26. 1926 SSheets-Sheet s .INVENTORS' 6%ar5 es figa erzwezier BY W/ZZ i r] z 7 adj A'TTORNE Y1;

"cimnms nsennwninnnan n WITJLIAIVI J. FIEGEL, OF :onrnoir, iliicn'iei'imj As- Patentecl Nov. 12, 1929 s srenons ro BOHNIALUMI'NUM nun BRASS cons-cannon, ensemble, n'renre'im,

nsco'nronn'r on or M rcnrszm I APPARATUS roacoAnIne Application filed April 26,

v. The invention relates to the coating art ,-and refers more particularly to an improved method and apparatus for coatingbearings or the like preparatory to the application otthe usual babbit or other lining material. Brass ,or similarly alloyed b'earings cannot grjeadily be lined With babbit Without first ion the brass replacing the copper 01" the j' A further feature wcoatingthe bearings With tin or like material.

Thus by subjecting the hearings to a soluition 'Ofmol'ten tin, the tin acts chemically brass. .Bearings cast 'in the usual manner.

contain a certainarnountof air and moisture,' water frequently being present in amounts of from ten to fifteen drops in a casting of the size ordinarily employed for connecting rod bearings of motor vehicle engines The pres .ence ofthl-s amount (35111915 51116 and air makes the,-bear ings float in Ithe ti-n bath until the air and moisture are driven out, at which itime thebearings will be of such relative density astosink in the tin bath; Thehigher the temp erature ofthe tin bath the more accelerated wisthe chemical action of the tin coating and theniore accelerated is the loading of the solution with the copper from the brass bearings. As .the solution becomes loaded with the copper the temperature must berais'ed in order to obtain effective coat ng" since thelpresence oi copper in increasing amounts in the solution renders the'same less active. It is important, therefore, to keep the temperature of the tin solution down. ,Howeverythe lower the temperatureoi the tin bathithe, slower is the process of driving of? the ater and the, air inthe casting with the esult that there-is a tendency to remove the bearings from the tin solutions before they sink, ithebearings under such conditions not beingproperly coatediwith the tin.

' gOne-of the objects ofthe inventionisto provide a method and machine iorcoating the hearings wherein the bearings are automatically removedffrom the tin'bath upon their -sinkinggatwhich time the tin coating Will be :jll5t right with the airand water driven out of the casting and the thoroughly heated. 1

castings will also be I I of-the invention resides intheprovision of a machlne for automat calof parts as more BEARINGS OR 'lI-IE LIKE 1926. serial no. 104,755.

' With the solutionsgof theot'hertanks. .Thus,

the pedals carried byftheseve'ral'conveyors are not subjected to the successive varying temperatures and chemical actions of the diiierent solutions as Wouldfbe the case Where the pedals of a single conveyor contacted sucdifferent solutions.

Astill further feature of the inventionresides in the' construct'ion ofthe "bearing troughs and the pedal const uction tor mov- .ing the bearings along the'tro'uglf 's preventing clogging of the hearings in the trough br'htween'fthe trough andpedals'; 1 Such a construction is very important since, i'fjthe beare ings :become' clogged or I jammed in the troughs, the conveyorl-mechanisimf or other v part of the o ratingmechanismfbeeome daniaged requiring temporary shutting doiv'njojf the machine for repair. With our construe tion a large number "of bearings are accommodat-edsince there 18 no possibility of cloging.

With these and other objects inlvieimfthe cessively, in moving the hearings, through the invention resides in the novel featiires of co'iistructionand combination and arrangements fully hereinaiite'r 'descrihed and claimed.

, Referring to the dravvingsin indicate corresponding eren'ce characters parts 1 is a plan View the machine Figure 2 is e a) side elevational view thereof showing in "detail the acid -bath 3 apparatus;

the tim ng bath ppa at a v l figurei l is ZtLSLmllEJgI' view showing in detail ihthewaterjfbath apparatusf' FioureB is a similar view showing in detail Figure is a detail side elevation View of a fragment of the endless chain carrier showing a pedal applied thereto; 7

Figure 6 is an elevation view at right angles with the chain fragment as shown in Figure 4:.

Figure 7 is a'detail sectional view taken substantially on .the plane indicated by line- 7-7in Figure 1;

Figure 8 is a sectional view taken on line 8 -8 in Figure 1; p

Figure 9 is a sectional view taken on lme Figure 10 is a sectional view taken on line 1010 in Figure 1.

The machine prererably comprises aplu ralityof units A, B and C sufficient in numher to accommodate the various steps involved in the tinning operation. For simplicity and convenience of manufacture, these units'are preferably substantially identical in general construction, the unit B as shown'in Figure 3 being typical. Thus the units are constructed of a trough 10 substantially V-shaped and supported suitable standards 11 which comprises the main. supporting frame of the machine. 12 denotes a channel guide for the carrier, this guide being positioned above the trough 10 and following the general dlrectlon of the trough. Guided within the channel 12 is a carrier 13 whichis of a chai-nlike endlesscarrier, this carrier at one end passing around the idler sprockets 14 and at the other end passing around the power driven sprockets154' v 16 represents a suitable source of power such as a motor which drives the main power .shaft 17 preferably through a reduction gearing 18. The power shaft 17 imparts rotatlve power directly to the drive sprockets 15 of theu'nit A and also to the drive sprockets -"of the unit B through gearing'19 and shaft o 20. Likewise,'the drive sprockets of the unlt O are driven from shaft- 20 throughgearing 21 and shaft 22 as will be' readily'under- .Referring again to the typical'unit B the carrier 13 thereof is provided at suitable spaced points throughout its length with pedals '23, which as shown in Figures 5 and 6, particularly, are securedfby suitable anchors 24to the desired links of the carrier chain. These pedals are also preferablysubstantially V-shaped to conform w th the trough 10, the guide 12being constructed'm Irelation'to,theltrough so as to guide the ."pedals23 within the trough and slightly spaced therefrom whereby the bearingsor the like are' moved longitudinally of the trough. v I fThe troughilO' of each unit s formed at one end with a bearing receiving portion 25 and at the other end with a downwardly in-' clined bearing discharge'portion 26,the portion 26 of eachtrough being positioned to discharge the bearings from the trough "of one unit to the receiving portion 25 of the adjacent unit. Intermediate the end portions 25 and 26 the troughs 10 have a downwardly extending portion 27 which serves to lower the bearings into the tanks 28, 29 and 30 of the units A, B and O respectively. In the tank 28 is a suitable substance such as zinc chloride providing an acid bath for the bearings preparatory to their introduction into the tank 29 of theunit B. In this latter tank, is placed the tinbath which is maintained at the desired moltentemperature by suitable heating means such as the gas burner 31 For reasons'aforesaid, it is desirable to maintain the temperature of the tin bath atapproximately lessthan 650 F. The tank 30 is adapted to contain a suitable substance for cooling the bearings such as Water.

As the bearings leave the trough 1O associated with the acid bath in tank28 of unit A, it is desirablethat all excess acid be freed therefrom so as to reduce the quantityof acid used and to prevent the same from being carried inlarge quantities to the'tinning bath. Each bearingis freed from all excess acid, such as mightadhere thereto in the form of drops, upon its discharge into the receiv mg end 25 of the trough 10 associated with 'One leg 37 of this'receiving gutter extends laterally with respect to the leg36 to a point over the acid bath trough 28 whereby the collected excess acid is returned to this trough. If desired, the leg 37 of the collecting gutter will be'slightly' inclined to facilitate the flowmg of this-accumulated acid back to the trough 28.

As the bearings leave-the tinning bath in tank 29 they frequently carry excessamounts of'tin 1n the forms of drops or accumulations and obviously it is also desirable; to

free the bearings from this excess tin,'not'- only for'the purposeof making the tin coat 111g more. uniform throughout buti also for the purpose of economizingrin the tin. The discharge 'end 26 of the tro'ughlO associated with the tin bath is arranged; in a higher plane than the receiving end 25 of the trough 10 associated with the coolingbath so that as the coated bearings leave the tinning bath and discharge into the receiving end of the cooling bath, trough, they'tumble by gravity downwardly on to the cooling 'bath' trough and strikethe same with'considerable force whims sojthet em; W Meetin s tumble into the end J t-lie'eeeumuleted exe'eee tin. This tinjcolle'c'ts in thebottom 10f tidighldflilcl passes ug o e r ,ifloie zip-entree 38 jnw {in This ingot 'is' i'eiho vzibly euppdrted; ed that becomes filled with the accumulated, eX'ces tl ll lli may he re ved dumped iiitothe t h fig ;t i ..2 s 1b i importent thzitfthe temperepuieer thej eip'nihg bath trough it) end (if the re- ,cit i e J d of t i f h sol y n t 57 b th e ba ehietmight eoi he in eee'eeet therewith either reeefe l the'splgtsh of the "tihes the beerings tumbie into the tahk 29 hf; reason of the :c'zii fied by '0'15 ffeed from the heatirlg's they letwethe' '()h fiotislytliet 611 of the though in irhmeeliete pr05;-

'porti -iii iey ti ith the h ating 'meej s esseeieted with the: tinning bath fvill be meint ieeaee this desired high teinpergitiife but in addition to this heatingi'nee'ns Weprov'ide one oi more de eee ii burners' 40 arranged an proximity @to that portion of the timing hath trofigi-h lininedizttely edj'acenlt thejehtrance end of the 'ep eei iedtheeeee es the bath willghe liminta'in'e'd in a molten stllte findfio-W back into "ti-e tank 29. In'idditieh we "piovitle ene 01- moie burners '41 for beefing the'dis'charge 26 of the tin b'ath t'fofigh and els'ohum ers 2, for heating the receiving end of the tooling. -bzith tfohg Thhs' the tin 'car'ried' "eh to the discharge end ef the tihiiing hath tibug'h will be maintained inev 'melten state ee as e fleigv theretreiii ere 41 While, the t heed fioiti the bearinf 's is they tumb e 'ifite the receiving. end of the 'eebliiigbath tr'oug-h w'ill be maintained also in a hiolten state'sothet it mexreachW flow lhfoiighfthe' ojfehirigs 38 t0 thein'get 3% Ohviously, if desired, and it Will probably flames tea the 'z'l-djeceht burners. I

In operationthe beatings zt'r'e pieced on the v 1 feceiving p'of'tion of the trough 10' of the unit' A, the pedals :the" beerings :eleng the tiotigh lzinged to eeerdeim'e for the ae'eired chemiem fiction "durie the travel. of "the hea'rin-gs "throngh the'ecid beth. The hearings ere theteeftet'inoired' eie'e j the tfough eue of the week 28 "to the tiieehegee end 26 where the -te'eringeere;eee fiietieelty ereneferged to the adjacent 'reeeivinge'iie e's of the t'i-ofigh of by ineztns' of the burn mg the hold 'solntien in tee B; he pe eieee eeeeeeea, the beer.

iiig as they tumble from the tifough (if the 'unit A to the though f'the unit B seek-e this letter troughwith snificient force to free the s me f. ny ex es e d w h y b "di e-- 'ing' thereto which add then passes th1;eugh

the opehing in the bottom of this letter tfough into the gutter and back through the leg 37 theieof to the tieid tank 28; The edals of the eer r'ier dissociated with the unit B then engage the beering'eend move them downwardly into the molten tin solhtie'n in in the heerihg cejstings, the hearings will, on

their introduction to the tin solution, float, 3

moving npi'va'rdly free trbinconteet with the pedals 2 3, the -pedals beihg Carried beyond the floating bearings. It will be noted that the po'rti'ons23 which cement the peda s 23 ttssee'n in Figure 6 Whefeby the fleetin -beerings will be permitted to remain iii the tin solnti'on Without meted the As soon as the nioistnreand air in the heel-- ing castings has been 'diive'n theie t'iohi; by iee'son of the me1ten'tin,fll eheafing's Will sink the tin solution and Test on the tfoiigh {bottom where they will be pi'clie'd tip 133 the next on-coining pedal bind niot edalohgfthe troughotit of the tinsolutie'n. Hence they" 1 win-be discharged to thereeeivi'ngenaef the trough of the unit "ofthejb'earing's from the 'tfohgh ef the nnit B to that of "the time C the beeringe will ee l el time 0 so me any cess: t ih eat-Tied thereby Will. be fr'eed jthe eifi'oin tindfiow though the apertures 38311116 the [iiiget le ni simiier' enner't e eeeinge-efe moved lbn'gitudiniillyhf the teeugh of unit Cjinto tank 30 containing the cooling ater -Whih serves to cool the bearings and dischaf'gethem at the efnd ofth'e trough of this last unit in 'pe'ilnittihg' their iminedialte h'a ndl1ng. The discharge end of the Wtl-terb ath.

trough is :pfovided with a regulable dis charge apron e l piyojtally connectedya's 211345 to a part of the machine struetuie andfhtses sociated therewith suppoftiiig. ee meeee 46 pivotelly'conneeted theret0f2is'et',47 eedex- Y tending th'rongh guides/l8; Al'ocking lever 49 is piVotallyinonnted-to the frame of the During the dieeh'erge the meme. Becm'ise of the water and air fee e .J In

machine for selective engegement"'wit11 a 5 :plti i'ality notches in the supporting 'seg ment; ,Thus the delivering ejaroii 'fna'y'be held in any of these ahgnler or' inclineiclpoeias they leev'ethe discharge end of theeooliiig bath tr oiigh tu' nble' c'lownvy ai dly lalongj this 'epioh M tor 'd'epositinglin any enefoffe in'urhjacerit 'th-e'end hf the Thachihe. Vlfithfthig cohstfti'c'tiojn'thebezi'fihgs myjbeidieeeeee to of theiset efal eontaine'rs arrangedat ti ons byfthe enge emene of the loclti-ngle't er "4C9 Withthe desii'ednoteh 50. The heztriiigs 5. A machine for treating bearings or the 6. A machine for treating hearings or the likevcomprising a trough for receiving the bearings, a tank containing a substance for treating the bearings, said trough having a portion extended into the tank for conducting bearings into the substance in the tank, a movable pedal carrier, a pedal having a bearing engaging portion disposed below the normal level of the substance contained in the tank, and a connection between the carrier and pedal adapted to clear bearings floating in said substance above the trough bottom,

the said bearings engaging portion being arranged adjacent the trough bottom so that it will engage hearings in the substance resting on the trough bottom and'move the latter bearings along the trough.

' 7. Avmachine for treating bearings or the like comprising a trough for receiving the bearings, a tank containing a substance for treating thebearings, said trough having a portion extended into the tank for conducting bearings into the substance in the tank, a movable pedal carrier, a pedal having a hearing engaging portion disposed substantially below the normal level of the substance contained in the trough and a connection between the pedal and carrier adapted to clear bearings floating in said substance above. the

trough bottom, the said bearing engaging portion aforesaid of the pedal being arranged adjacent the trough bottom so that it will enage bearings in the substance resting on the trough bottom so as to move the latter bearings along the trough, to a point free from contact with the substance in the tank.

8. A machine for coating bearings or the like comprising a tank containing the coat ing material, a movable carrier, means for moving the carrier, a trough, a pedal movable with the carrier and engageable with the bearings to immerse the hearings in the tank and to remove them therefrom, said pedal having a bearing engaging portion disposed adjacent the bottom of the trough substantially below the normal level of the substance.

contained in the tank so as to clear the bearings upon their insertion into the tank for a predetermined time and to thereafter engage the bearings and move them along the trough to a point free from contact with the coating material.

1 -v '7 i -U- ntam e an a m lt n .t n emlne' tank, 1

9- A mach ne or coa in b arin s 0 he like, comprising a tank 'containingthe coat I ng m t ri f i 'e'h av g and P r s ree f om commie-a mane e a s r 'el a d an inteimediatererti s' bm l 'ee t e t ita amt-1 nitr te aiaed l li vabls w th he ar e n leae e le'wltll t Marine I mote e ne Pa ton 0i 'e d ug'h; and "guide mea s er a d Carrier, th s pedal h vin beat-i s nga es p r io ng d dja nt bttpie Q the m'oue' se ha he bearing en n po ti ns t' he' pe lsw l "en ge e beat ng m ma th m l e at eaeh in he tank and re fte ear heb at i es a ng n the mi k, b t m e rough and n u in th la te be n I ings along the trough and out the coating at iela a '10 A machine for applying a tin coating t beari gs, r tl ik n ud ng a p i l ty of separate units, comprising an acid containing tank, a molten tinco'ntaining tank, anda coolingliquid containing tank, and separate 'en ying means s ciat d'w th 1 e1 1; r mo i a p ur lityfit the b ri g $1 9 1 itely in n oa Qt th sa ,tiiks'in the order named. 3 1 A mashine o applying a i coating b ari gs, t kan i pr si g ap d v a c ne li lid ill l g nk, 5, -flnksbifime 'anel a' eftii ee iwtlth r s t 1 o e c o ea s orfmovine' F ue rality of the bear ngssuccessively nto'anfd 191) out of the sa d tanks'in the order named,said m an omp s 'ne e dless c ie sseflla ed 11 e o s i iwli SJLa L l Pedal i mt on said carrier 'fandengagjeable to move'said' bearings. 7 I l 1' 11 mbi at n th a subst n ally V- shaped trough for receiving plurality of bearings or the like,a carrier, aguide for said carrier, said carrier beingprovidedwith a pedalhaving avportion engageable withthe bearings for movingthe same along the trough, said pedal portion being V-shaped to conform with the trough and beingspaced therewithin whereby jamming of the bearings in the trough is prevented.

13. In an apparatusfoi' coating bearings or the like, ,two'units each including-a container for material for treating the bearings I and means for introducing the bearings into said material; means for delivering'the bearingsfrom one unit to the other and for freeing the bearingsfrom excess amounts of said material and means for collecting the material thus freed 14;. In a machine for coating articles, a plurality of angularly disposed units each including a container for material for treating the articles and separate conveying means associated with each unit for introducing the articles into the treating'material and 1,39

for delivering said articles to the next] unit. 15. In a machine for coating bearings and the like, a plurality of units eachrincludingfa container for material for treating the bear ings, and means associated With each unit for introducing the bearings into the treating material and for delivering said bearings to the next unit and an adjustable delivery means associated With the last unit.

16. In a machine for coating bearings and the like, a plurality of units each including a container for material for treating the bearings, means associated 'With each unit for I introducing 'the bearings into, the treating material and for delivering said hearings to the next unit, and an adjustable delivery means associated with, the discharge end of one of said units. y I

a. 1-7. In an apparatus for coating bearings or the like, two units each, including acontainer for material for'treating the bearings and means for introducing the bearings into the material, means for deliveringthe hearings from one unit to the other and means associated With the last mentioned unit for freeing the bearings from excess amounts of said material and conducting the same hack to said first unit. t

18. A machine for treating hearings or the like, comprising a plurality of units, each,

consisting of a trough for receiving the bearings and each'comprising an endless pedal carrier, a pair of guides for the carrier positioned substantially, above the trough and following the general contour thereof, pedals carried by the endless carriers and supporting the said guides for moving the bearings along the troughs respectively, means for moving the endless carriers, and means asso- 40 'ciated with the ,troughs'of adjacent units adapted to discharge the bearings from thetrough ofone unitto that of theother.

In, testimony whereof We afiiX our signatures.

CHARLES W. EeeENWEiLER.

'WILLIAM J. FIE GEL. 

